1. As the capital city in the northern region of Vietnam, Hanoi absorbs heavy industries such as manufacture, construction, and chemical industries. The industrial sector is partly responsible for a major share of the greenhouse gas emissions and has also contributed to a serious degree of pollution. The industrial activities have emitted considerable amounts of ambient air pollutants. Industrial emissions included oxides of sulfur, nitrogen oxides (NOx), and dust particles, which may easily penetrate into the atmosphere to cause respiratory diseases and heart attacks-like ailments among men.
2. Hanoi has an extensive road network, allowing for public and private road-transit. The older vehicles, which are gas-guzzlers, produce CO, NOx, and PM, contributing to grave air pollution. Diesel buses and trains produce plumes of smoke and large amounts of particulate emissions from their engines, such as a range of hazardous substances. In addition, dust and emissions from construction machinery and equipment, as well as ports in the city's outskirts, would also not help ease air pollution.
1. Rapid Urbanization and Industrialization: The spectacular development of Hanoi has surely, yet rather discreetly, produced an uptick in industrial activity throughout the ages. Dust, soot, odors, and fumes: factories, construction sites, and industrial discharge add to atmospheric pollution throughout the city; and this results in low quality or poor standard air.
2. The years running through Hanoi streets and all corners, significantly increased numbers of motor vehicles were witnessed-huge numbers of motorcycles and trucks. Emissions from automobile, motorcycle, and truck pollution play a critical role in the body of airborne pollution, vascularizing the quality of air-leaving behind an effluent trail of typical nitrogen oxides, microscopic particles, and carbon monoxide.
3. Agricultural Burning. Farmers in rural areas surrounding Hanoi resort to burning their crops to clear fields, causing a considerable extent of got smoke and particulates. This commonly occurs during specific seasons favorable for burning.
Factors adversely affecting air quality in Hanoi, Vietnam, would include:
1. Motor vehicle emissions: The recent growth of motor vehicles, with a special emphasis placed upon motorcycles, has continually led to more emissions of PM, NOx, and VOCs. Furthermore, many old vehicle types do not contain emission control systems, producing a fair amount of pollution into the atmosphere.
2. Industrial emissions: Industries in and around Hanoi release enormous amounts of SO2, dust, and other hazardous industrial wastes. Though technically not an enforcement idea, the aim which Vietnam made to clean the emitting of industries altogether does not follow the flow, and as a result, pollution continues.
3. Dust resulting from construction: The ongoing urbanization itself is producing immense amounts of dust, and consequently, there is increased PM in the air. The problem is especially aggravated during the dry seasons when winds carry the dust far and wide.